Machine for making paper shells.



J. GHESNEY.

nclmm run MAKING um SHELLS. APPLIOATIOH I'ILED D20.11,1006.

931,269. Patented Aug. 17, 1909.

LIKBBTS-BHBET 1.

FIG.

IV/TAIESSES: I INVEN7'0/i' 90L, m 4w W ad? J GHESNBY.

MACHINE FOR MAKING PAPER SHELLS.

' Arruoumx rlnnn no. 11, 1900.

931,269, Patented Aug. 17, 1909.

4 BHBBTB-BHEET 4.

-W/TNESSES: l/VVE/VW? WWW.

ITTORIVEYG.

- UNITED STATES PATENT OFFICE. I

JOHN eHEsNEY, F PAULSBORO, NEW JERSEY, ASSIGNOR TO THE E. I. no PONT DENEMOURS POWDER COMPANY, OF WILMINGTON, DELAWARE, A CORPORATION or NEWJERSEY.

To all whom it may concern:

Be it known that I, JOHN CHESNEY, aciti-. zen of the United States,residing at Paulsboro, county of Gloucester, and State of New Jersey,have invented a new and useful Improvement in Machines for Making PaperShells, of which the following is a full, clear, and-exact description,reference bein hagi to the accompanyin drawings, whic 'foizui a part ofthis speci cation.

The invention relates to that class of machines for making paper shellsfor holding explosives in which the paper sheets are fed to a rotatingmandrel and wrapped thereon to form a tube; the end of which is foldedand closed and whichis then slipped off the mandrel.

The objectof the invention is to make the machine entirely self acting,to improve the action of the various parts, and to provide new featuresperforniing'new functions and contributing to the successful and certainaction of the machine.

In the drawings: Figure 1 is a plan view of the machine. Fig. 2 is aside elevation.

' Fig. 3 is a front elevation with certain'parts omitted for the purposeof more clearly showing the construction of the remaining parts. Fig. isa section on the line 4-4 of Fig. 1. Fig. 5 1S an enlarged detailsectiona l view of the pneumatic picker. Fig.

(i is an enlarged detail View of the stamp. Fig. 7-1S an enlarged detailplan view of the split nut for supporting the threaded shaft On whichthe paper table is supported. Fi s. 8 and 9. are detail sectional viewsof 5K6 pressure and exhaust valves respectively,

8 is the frame'ofthe machine and 9 the top plate of the frame; 10 is the"vertically movable table holdin the sheets of paper a. The stationary.side-p ate 100 of the table 10 is bolted to the angle-bar 101, which isbolted to the top plate 9 of the frame.

' picking up the aper sheets and feeding to 20 is the mandrelto whichthe sheets of paper are successively fed and about which the paper iswound to form the pa rtubes. 40 is a pneumatic pick r and eeder for themto the man re 6Q isthe guide piece for guiding the sheet around themandrel. .70 is the folder'for folding in one end of the tube after itis formed on the mandrel.

H mcrmm'ronmkmo PAPER srrELLs.

Patented Aug. 17, 1909.

move the picker and feeder bac toward the mandrel, thus carrying therear edge of the sheet over the mandrel, which lays hold of the sheetand windsit around the mandrel to form a tube.

The picker 40, shown in detail in F1 5,

comprises the hollow head 41, connecte to and sup orted by the exhaustpipe 50 the hollow s ank 42' depending from the head 41, and the mouthpiece 43 surrounding and sliding on the shank 42.- The exhaust pipe 50extends throu h and is supported byan arm 45 on the s ide 46, andcommunicates with the exhaust chamber 13. The slide 46 is movable .backand forth on side-plate 100 as'a guide.

Secured to the slide 46 is a bar 47 whose rear end is attached to alever 48 pivoted on a bracket 38 on the top plate 9. A spring 51,secured to the bracket 38 and bearing againstthe lever 48, normallyholds the slide 46 in its forward position against a stop 52 secured tothe side-plate 100. A cam 49, on the main drivin -shaft 11, moves thelever 48 back against ilie tension of the sprin 51 and moves the slide46 toward the man rel. I

- valve 54 is thus operated, the air is sucked inwardly through theshank 42, the mouth J ieee 43 sliding upwardly on the shank and liftingthe-top sheet above the ile below it. The suction bein maintain. thepicker and feeder is move backwardly toward the inandrel'by thedescribed act-ion of .cam49. This brings the reared and against the"upper ace of the rotating mandrel 20. The cam 59 their cases beyond'thevalve-stem 56, and the va ire closes,

of the sheet. over. I v

. 25 4 out of-action by a cam 69 on the main shaft shutting oficommunication between the exhaust 'c lmder 13 and the picker and feeder40, an releasing, the sheet fed to the mandrel. The cam 49 subsequentlyasses be- {ond the lever 48, which is moved orwardly means of the 51,returnin the picker and feeder to its original position. A holder f,consisting of a plate secured to the mouth-piece 43, and extending'fonwardly on a level with the lower edge of the mouth-piece, continues toengage the forward end of the pilewhen t e picker and feeder is moved toitsfarthest position back, and revents the mouth-piece of the picker andeeder from catching in the top sheet .or

I sheets of the Epaper as it moves forwardly.

- After the set is carried back to the mandrel and released from the.picker and feeder as before described, the i moved down, the sameguiding the ed eof the sheet around the mandrel and holding the sheet incontact'with the mandrel during the rolling operation. The guide-pieceis supported on a lever -61, which ;is pivoted between its ends on astandard 62 and is raised (see Fig. 4) and drops into action by itsownweight. I The mandrel 20, which is of a well known construction, beindetachably secured turning in hearings in the standards 22, 22, andalsoin a recessed end-head 210 on the standard 211. The head 210 isconnected, by a pipe 23, withthe exhaust chamber 13, and the pipe isopened and closed by a valve (not shown but similar td valve 54 o eratedby a cam 29 on the main shaft. -h1S valve is opened before each rollinoperation to.

exhaust air from the mandre and is closed after the sheet is rolled intoa tube and before the ejector is operated.

The shaft 21 .'s driven from the main driving shaft 11 by a chain ofgears 25, 26,

27, 28. The gear 25 on the shaft 11 drives the gear. 26; and the ear 27,which is on the shaft of gear 26, rives the gear 28"on the mandrelshaft. The shaftof gears 26 and 27 turns in bearings in the standardsplate provided with several lingers, which actsuccessively upon the proecting paper .-to form a corresponding number, of overlapping fo'lds.The folder is secured tea-gear 71, pivoted on a bracket 73, and the gear71- is driven from a gear 7 4 on the mam shaft 11.

on the to swung upwardly and inwardly to-cause the ide-piece is hollowand orificed, is to a hollow shaft 21,

. 99 on the main After the folder has operated, the header v80 isoperated. The header consists simply of a punching-head secured to thehead of a lever 82 pivot-ally secured. in a bearing 83 plate of theframe, The lever is plunger to impin e against the central par of thefolded en of the tube, .pressing the same inwardly within the recessedend of the mandrel and causing the folds to be permanently set, thus comleting the formation of the bottom of the s ell. The lever 82 is thusoperated by a plunger 84 working in-a pressure cylinder 85, WhlCll'lSconnected, by

.a (pipe 86,- with the pressure chamber 12.

ss'ion of the pressure fluid to the cylinthe stem 88 of the yalve beinoperat by a cam 89 on. the main shaft. lhe header is returned by meansof a spring-8l connecting the head of the lever and a projection on theend of the frame. After the shell is thus completed, it is ejectedfrom'the mandrel by means of the, ejector 90, which consists of agrooved collar closely fittin the mafndrel and which is projected towarthe outer end of the-mandrel at the pro er time, causing der iscontrolled by a valve 860 (see Fig. 8) normally held on its seat by asprin 87,

the inner or open end of t e tube to be enaged thereby and forced 01fthe mandrel. he collar is operated by means of a swinging lever 91,pivotedon the shaft 910, whose forked upper end engages he groove in thecollar. The lever 91 is operated by a link 92-connecting the lever 91and the piston rod 93 of a piston in the cylinder 94;. The

respective ends of the cylinder are connected, by means of pipes 96 and97, with i the pressure cylinder 11. On these pipes are control valves960 and 970. similar to valve 860) operated respectively, y cams 98 andshaft. At each end of the cylinder 94 is a small exhaust port to theatmosphere to reduce the pressure therein after thecontrol valve at thatend of the cylinder is closed and to permit the ressure fluid admittedat the' other end of th cylinder to be effective. movement of the lever91, lever 82, at its pivoted end, is recessed and a buffer-spring 95secured to the front wall of the recess in line of movement of the lever91.

To enable the sheets on the table to be separated, if there is anytendency for them to stick together, a blow pi 751s provided, said pipeextending from t e pressure cylinder 12 along the side'of the machineand through the side plate-100 to a point along-' side the upper sheetsof the pile. Admission of air through the pipe is controlled by the Tolimit the outward 15,.vzhose flanged upper .under side of the table. Thescrewshaft extends'throlwh a two-partnut 16 supported .on the to p ate 9of the frame as hereinafter (lescri I The bot tomof the shaftturns ina-bearin g 1 51 on a bracket 103 on the frame. Ahorizontal shaft 152drives the screw-shaft through bevel gears 153 and 154, the latter being.splined on the screw-shaft. On the shaft 152 is a ratchet wheel 155.Pivoted on the shaft 152 is a pawl-lever 156 carrying a springp'ressedpawl 157 and operated by a con- .mcting rod 158 from a crank disk 159setogthe main shaft. 7 In the operation of the machine, after therecession of the picker and feeder 40, the

pawl 157 turnst-he ratchet 155 a distance of one tooth, thus im 'artinga partial turn to the screw-shaft. T is causes the screw-shaft to have aslight a ward movement due to its engagement wit the fixed nut 16. The

. The nut is also supported in cam 179 on the main shaft.-

' inder 171, it forces the face of the stamp- .through t parts are soproportioned that the extent of the upward movement of the screw-shaftust equals the thickness of a sheet of aper. The top of the pile is thusmaintaine on a 1 constant level. V When one pile of pa er is exhaustedand clamp 166 secured tothe top p ate 9 and en-. ga%ng the extensions165.

0 print each sheet of pa er before it is .fed to the mandrel thefollowing device,

-' (shown in detail in in 6 i provided. 17 45 is a stamp-block ona luner-rod 170 extehdmg within a cylin er 1 1. 172 is the plunger headfitting within the cylinder, 173 15 a spring tending to hold the plungerand stain -block raised. The cylinder 171 is secure to and communicateswith a pipe 174 connected with the pressure cylinder 12. The 174 extendsthrough a bracket 175,-w 1011 is secured to the sideplate 100 by meansof a set screw extending through one of the several orifices 105 in theslde-plla'te. Passage of pressure fluid e pipe 174 is controlled by avalve 680 (similar to valve 860) operated by a 7 When air is admittedthrough the pipe 174-to the cylblock 17 against the" surface of'the top'mama rints thereon. j To ink the printing face of the, stamposition by ablock, I provide a roller-pad 18- j-ournaled in the lower ends of lovers180 pivoted on an arm 181 on the cylinder 171. S rings 1 82, connectingthe cylinder and the overs,

tend to hold the roller under-the stampblock, but when the plunger-rod170-is depressed, the roller. 18, being held from downward movement,swings outwardly, and clears the stamp-block. When the plunger Y isretracted, the springs 182 return the roller to its normal position.

Projecting from the cylinder 171 are arms 1T6 carrying guides 177through whichex; tend rods 178 secured to the stamp-block 17.

To preventthe aper on the table from creepin backward there is)l'OVldQtl the g a l holding-plate 191 secured to the top-plate 9, whichextends up to a point that enables the top sheet to be fed over it tothe mandrel. 192 is a stop secured to the table and extending in frontof the pile and preventing a holder at the side of the paper, the same"the paper from slippingforwardly. 193 is consisting of an angle platesecured to thetable and extending up alongside, and also overhanging thepile.

Having now fully described my invention, what I claim and desire toprotect by Letters Patent is:

1. In a machine for making paper shells,

the combination with the icker for selecting sheets of paper, the inanrel for roll-mg the the ejector sleeved on sheets into tubes, an themandrel for ejecting the shells from the mandrel, of a pressure chamber,an exhaust chamber, a p1 e connecting the pressure chamber with t 1cejector, a pipe connecting the exhaust chamber with the picker, valvesin said pipes, the driving shaft, and cams actuated successively by'thedriving shaft and actuating the valves respectively.

2. In a machine for makm paper shells,

the combination with a table' 1- supporting apile of paper, of apressure chamber, an ex iaust chamber, a stamp for printing upon thepaper, a pipe connecting the pressure clnimber and stam a picker toselect the sheets from the pi e, a pipe connecting the exhaust chamberand. the'picker, the mandrel, the folder, the header, a pipe connectingthe pressure chamber and header, valves the ejpct-or and pressure chamr, the drive ing s aft, and mechanism controlled by the on said pipes,the'ejector, a pi e connecting driving shaft and actuating said picker,

folder and valves respectively.

' 3. In a shell making machine, the com bination with the mandrel onwhich'the shell is formed, of an ejector sleeved on the mandrel andlongitudinally slidable thereon, a pressure cylinder, a piston thereinconnected -with the ejector, an air-pressure chamber, pipes connectingthe air -pressure chamber with opposite endsof the pressure cylinpaperto the mandre the ejector sleeved on and longitudinally slidable uponthe mandre'l, an air pressure chamber, an air exhaust chamber, pipes resectively connecting the picker and mandre with the exhaust chamber, aressure cylinder, a piston therein connecte with the ejector, apipe-connecting the pressure chamber wlth the ejector, valves on theseveral pipes, the driving shaft, and mechanism controlled thereby tooperate the several .valves. 5.- Ina machine for making pa er shells,the combination with the paper ta le, of :the hollow mandrel, a pickerto transfer the paper to the mandrel the ejector sleevedon andlongitudinally slidable upon the mandrel, an air pressure chamber, anair exhaust chamber, pipes res ectivel connectin the icker and mandrewith 't e exhaust 0 amer, a pressure cylinder, and a piston thereinconnected with theejector, pi es connecting opposite ends respectively 0the pressure chamber,

cfilinder with the supply chamber, 'valves on t e. several pipes, thedriving shaft, and mechanism controlled thereby to operate the severalvalves.

- 6.In a shell making machine, the combination with the main drivingshaft, a secondary shaft and driving connections betweenv the twoshafts, of a hollow mandrel ejector sleeved on the mandrel, pressurecylinder'a'nd piston actuating the ejector, any air pressure chamber, anair exhaust (pipes res ectivel connectin the icker an mandre with'teexhaust 0 amr, i-pes respectively connecting the two on the severalpipes, and mechanism controlled by the secondary shaft toyactuate theseveral valves. c

In testimony or "which invention, I have hand," at Paulsboro, 'N. J

, JOHN. CHESNEY,"

Witnesses:

ERNEST REDFIELD,- THO-S. .W. BACCHUS.

on. which the shellis formed, a pickerto transfer the paper to"the-mandrel, a headerfor closing the ends of the shells, apressurecylinder and piston actuating the header, an

'cylin er's withthe supply chamber, valves

